When you're on the road, you're never sure what might happen. The best way to travel in peace, and avoid any problems you may encounter on the way is by contracting medical insurance. That way you'll be covered when in Brussels.
Check your insurance
Before taking out medical insurance in Brussels, you should check the policies you already have (home, car, etc) to confirm whether or not travel insurance is included. You never know!
Another alternative is to check insurance policies offered by credit cards. It's common that if you've paid for your flight to Brussels with a card, some kind of insurance comes included.
How to contract travel insurance
Taking out travel insurance before leaving is important if you want to travel in peace. At Civitatis we offer complete insurance from 9€ (US$9.7) per person.